Complex classes like Runtime often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Runtime, and based on these observations, apply Extract Interface, too.
1 | <?php |
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26 | class Runtime |
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27 | { |
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28 | const DEBUG_ERROR_LOG = 1; |
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29 | const DEBUG_ERROR_EXCEPTION = 2; |
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30 | const DEBUG_TAGS = 4; |
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31 | const DEBUG_TAGS_ANSI = 12; |
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32 | const DEBUG_TAGS_HTML = 20; |
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33 | |||
34 | /** |
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35 | * LightnCandy runtime method for output debug info. |
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36 | * |
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37 | * @param string $v expression |
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38 | * @param string $f runtime function name |
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39 | * @param array<string,array|string|integer> $cx render time context |
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40 | * |
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41 | * @expect '{{123}}' when input '123', 'miss', array('flags' => array('debug' => Runtime::DEBUG_TAGS), 'runtime' => 'LightnCandy\\Runtime'), '' |
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42 | * @expect '<!--MISSED((-->{{#123}}<!--))--><!--SKIPPED--><!--MISSED((-->{{/123}}<!--))-->' when input '123', 'wi', array('flags' => array('debug' => Runtime::DEBUG_TAGS_HTML), 'runtime' => 'LightnCandy\\Runtime'), false, null, false, function () {return 'A';} |
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43 | */ |
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44 | 9 | public static function debug($v, $f, $cx) { |
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74 | |||
75 | /** |
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76 | * LightnCandy runtime method for error |
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77 | * |
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78 | * @param array<string,array|string|integer> $cx render time context |
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79 | * @param string $err error message |
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80 | * |
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81 | * @throws \Exception |
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82 | */ |
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83 | 11 | public static function err($cx, $err) { |
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92 | |||
93 | /** |
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94 | * LightnCandy runtime method for missing data error. |
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95 | * |
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96 | * @param array<string,array|string|integer> $cx render time context |
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97 | * @param string $v expression |
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98 | */ |
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99 | 5 | public static function miss($cx, $v) { |
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102 | |||
103 | /** |
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104 | * LightnCandy runtime method for variable lookup. It is slower and only be used for instance property or method detection or lambdas. |
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105 | * |
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106 | * @param array<string,array|string|integer> $cx render time context |
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107 | * @param array|string|boolean|integer|double|null $in current context |
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108 | * @param array<array|string|integer> $base current variable context |
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109 | * @param array<string|integer> $path array of names for path |
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110 | * @param array|null $args extra arguments for lambda |
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111 | * |
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112 | * @return null|string Return the value or null when not found |
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113 | * |
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114 | * @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), null, 0, array('a', 'b') |
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115 | * @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0), 'mustlok' => 0), null, array('a' => array('b' => 3)), array('a', 'b') |
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116 | * @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), null, (Object) array('a' => array('b' => 3)), array('a', 'b') |
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117 | * @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 1, 'method' => 0, 'mustlok' => 0)), null, (Object) array('a' => array('b' => 3)), array('a', 'b') |
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118 | */ |
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119 | 382 | public static function v($cx, $in, $base, $path, $args = null) { |
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120 | 382 | $count = count($cx['scopes']); |
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121 | 382 | while ($base) { |
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122 | 346 | $v = $base; |
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123 | 346 | foreach ($path as $name) { |
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124 | 346 | if (is_array($v) && isset($v[$name])) { |
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125 | 341 | $v = $v[$name]; |
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126 | 341 | continue; |
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127 | } |
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128 | 33 | if (is_object($v)) { |
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129 | 5 | if ($cx['flags']['prop'] && !($v instanceof \Closure) && isset($v->$name)) { |
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130 | 3 | $v = $v->$name; |
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131 | 3 | continue; |
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132 | } |
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133 | 5 | if ($cx['flags']['method'] && is_callable(array($v, $name))) { |
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134 | 4 | $v = $v->$name(); |
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135 | 4 | continue; |
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136 | } |
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137 | } |
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138 | 31 | if ($cx['flags']['mustlok']) { |
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139 | 28 | unset($v); |
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140 | 28 | break; |
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141 | } |
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142 | 3 | return null; |
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143 | } |
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144 | 346 | if (isset($v)) { |
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145 | 335 | if ($v instanceof \Closure) { |
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146 | 30 | if ($cx['flags']['mustlam'] || $cx['flags']['lambda']) { |
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147 | 30 | if (!$cx['flags']['knohlp'] && ($args || ($args === 0))) { |
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148 | 20 | $A = $args ? $args[0] : array(); |
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149 | 20 | $A[] = array('hash' => $args[1], '_this' => $in); |
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150 | } else { |
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151 | 11 | $A = array($in); |
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152 | } |
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153 | 30 | $v = call_user_func_array($v, $A); |
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154 | } |
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155 | } |
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156 | 335 | return $v; |
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157 | } |
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158 | 28 | $count--; |
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159 | switch ($count) { |
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160 | 28 | case -1: |
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161 | 27 | $base = $cx['sp_vars']['root']; |
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162 | 27 | break; |
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163 | 6 | case -2: |
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164 | 26 | return null; |
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165 | default: |
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166 | 6 | $base = $cx['scopes'][$count]; |
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167 | } |
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168 | } |
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169 | 40 | if ($args) { |
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170 | 3 | static::err($cx, 'Can not find helper or lambda: "' . implode('.', $path) . '" !'); |
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171 | } |
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172 | 40 | } |
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173 | |||
174 | /** |
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175 | * LightnCandy runtime method for {{#if var}}. |
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176 | * |
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177 | * @param array<string,array|string|integer> $cx render time context |
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178 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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179 | * @param boolean $zero include zero as true |
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180 | * |
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181 | * @return boolean Return true when the value is not null nor false. |
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182 | * |
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183 | * @expect false when input array(), null, false |
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184 | * @expect false when input array(), 0, false |
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185 | * @expect true when input array(), 0, true |
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186 | * @expect false when input array(), false, false |
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187 | * @expect true when input array(), true, false |
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188 | * @expect true when input array(), 1, false |
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189 | * @expect false when input array(), '', false |
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190 | * @expect false when input array(), array(), false |
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191 | * @expect true when input array(), array(''), false |
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192 | * @expect true when input array(), array(0), false |
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193 | */ |
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194 | 59 | public static function ifvar($cx, $v, $zero) { |
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197 | |||
198 | /** |
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199 | * LightnCandy runtime method for {{^var}} inverted section. |
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200 | * |
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201 | * @param array<string,array|string|integer> $cx render time context |
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202 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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203 | * |
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204 | * @return boolean Return true when the value is not null nor false. |
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205 | * |
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206 | * @expect true when input array(), null |
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207 | * @expect false when input array(), 0 |
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208 | * @expect true when input array(), false |
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209 | * @expect false when input array(), 'false' |
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210 | * @expect true when input array(), array() |
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211 | * @expect false when input array(), array('1') |
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212 | */ |
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213 | 37 | public static function isec($cx, $v) { |
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216 | |||
217 | /** |
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218 | * LightnCandy runtime method for {{{var}}} . |
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219 | * |
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220 | * @param array<string,array|string|integer> $cx render time context |
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221 | * @param array<array|string|integer>|string|integer|null $v value to be output |
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222 | * |
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223 | * @return string The raw value of the specified variable |
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224 | * |
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225 | * @expect true when input array('flags' => array('jstrue' => 0, 'mustlam' => 0, 'lambda' => 0)), true |
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226 | * @expect 'true' when input array('flags' => array('jstrue' => 1)), true |
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227 | * @expect '' when input array('flags' => array('jstrue' => 0, 'mustlam' => 0, 'lambda' => 0)), false |
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228 | * @expect 'false' when input array('flags' => array('jstrue' => 1)), false |
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229 | * @expect 'false' when input array('flags' => array('jstrue' => 1)), false, true |
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230 | * @expect 'Array' when input array('flags' => array('jstrue' => 1, 'jsobj' => 0)), array('a', 'b') |
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231 | * @expect 'a,b' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a', 'b') |
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232 | * @expect '[object Object]' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1)), array('a', 'c' => 'b') |
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233 | * @expect '[object Object]' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1)), array('c' => 'b') |
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234 | * @expect 'a,true' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a', true) |
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235 | * @expect 'a,1' when input array('flags' => array('jstrue' => 0, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a',true) |
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236 | * @expect 'a,' when input array('flags' => array('jstrue' => 0, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a',false) |
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237 | * @expect 'a,false' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a',false) |
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238 | */ |
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239 | 309 | public static function raw($cx, $v) { |
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270 | |||
271 | /** |
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272 | * LightnCandy runtime method for {{var}} . |
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273 | * |
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274 | * @param array<string,array|string|integer> $cx render time context |
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275 | * @param array<array|string|integer>|string|integer|null $var value to be htmlencoded |
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276 | * |
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277 | * @return string The htmlencoded value of the specified variable |
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278 | * |
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279 | * @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a' |
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280 | * @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b' |
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281 | * @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b' |
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282 | */ |
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283 | 44 | public static function enc($cx, $var) { |
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286 | |||
287 | /** |
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288 | * LightnCandy runtime method for {{var}} , and deal with single quote to same as handlebars.js . |
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289 | * |
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290 | * @param array<string,array|string|integer> $cx render time context |
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291 | * @param array<array|string|integer>|string|integer|null $var value to be htmlencoded |
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292 | * |
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293 | * @return string The htmlencoded value of the specified variable |
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294 | * |
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295 | * @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a' |
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296 | * @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b' |
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297 | * @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b' |
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298 | * @expect '`a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), '`a\'b' |
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299 | */ |
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300 | 236 | public static function encq($cx, $var) { |
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303 | |||
304 | /** |
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305 | * LightnCandy runtime method for {{#var}} section. |
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306 | * |
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307 | * @param array<string,array|string|integer> $cx render time context |
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308 | * @param array<array|string|integer>|string|integer|null $v value for the section |
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309 | * @param array<string>|null $bp block parameters |
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310 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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311 | * @param boolean $each true when rendering #each |
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312 | * @param Closure $cb callback function to render child context |
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313 | * @param Closure|null $else callback function to render child context when {{else}} |
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314 | * |
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315 | * @return string The rendered string of the section |
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316 | * |
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317 | * @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, false, false, function () {return 'A';} |
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318 | * @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), null, null, null, false, function () {return 'A';} |
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319 | * @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), true, null, true, false, function () {return 'A';} |
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320 | * @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, false, function () {return 'A';} |
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321 | * @expect '-a=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a'), null, array('a'), false, function ($c, $i) {return "-$i=";} |
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322 | * @expect '-a=-b=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a','b'), null, array('a','b'), false, function ($c, $i) {return "-$i=";} |
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323 | * @expect '' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'abc', null, 'abc', true, function ($c, $i) {return "-$i=";} |
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324 | * @expect '-b=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a' => 'b'), null, array('a' => 'b'), true, function ($c, $i) {return "-$i=";} |
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325 | * @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'b', null, 'b', false, function ($c, $i) {return count($i);} |
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326 | * @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 1, null, 1, false, function ($c, $i) {return print_r($i, true);} |
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327 | * @expect '0' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, false, function ($c, $i) {return print_r($i, true);} |
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328 | * @expect '{"b":"c"}' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('b' => 'c'), null, array('b' => 'c'), false, function ($c, $i) {return json_encode($i);} |
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329 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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330 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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331 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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332 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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333 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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334 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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335 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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336 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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337 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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338 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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339 | * @expect '268' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,4), null, 0, false, function ($c, $i) {return $i * 2;} |
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340 | * @expect '038' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,'a'=>4), null, 0, true, function ($c, $i) {return $i * $c['sp_vars']['index'];} |
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341 | */ |
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342 | 157 | public static function sec($cx, $v, $bp, $in, $each, $cb, $else = null) { |
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454 | |||
455 | /** |
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456 | * LightnCandy runtime method for {{#with var}} . |
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457 | * |
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458 | * @param array<string,array|string|integer> $cx render time context |
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459 | * @param array<array|string|integer>|string|integer|null $v value to be the new context |
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460 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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461 | * @param array<string>|null $bp block parameters |
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462 | * @param Closure $cb callback function to render child context |
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463 | * @param Closure|null $else callback function to render child context when {{else}} |
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464 | * |
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465 | * @return string The rendered string of the token |
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466 | * |
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467 | * @expect '' when input array(), false, null, false, function () {return 'A';} |
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468 | * @expect '' when input array(), null, null, null, function () {return 'A';} |
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469 | * @expect '{"a":"b"}' when input array(), array('a'=>'b'), null, array('a'=>'c'), function ($c, $i) {return json_encode($i);} |
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470 | * @expect '-b=' when input array(), 'b', null, array('a'=>'b'), function ($c, $i) {return "-$i=";} |
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471 | */ |
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472 | 22 | public static function wi($cx, $v, $bp, $in, $cb, $else = null) { |
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484 | |||
485 | /** |
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486 | * LightnCandy runtime method to get merged context |
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487 | * |
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488 | * @param array<string,array|string|integer> $cx render time context |
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489 | * @param array<array|string|integer>|string|integer|null $a the context to be merged |
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490 | * @param array<array|string|integer>|string|integer|null $b the new context to overwrite |
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491 | * |
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492 | * @return array<array|string|integer>|string|integer the merged context object |
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493 | * |
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494 | */ |
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495 | 70 | public static function m($cx, $a, $b) { |
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509 | |||
510 | /** |
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511 | * LightnCandy runtime method for {{> partial}} . |
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512 | * |
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513 | * @param array<string,array|string|integer> $cx render time context |
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514 | * @param string $p partial name |
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515 | * @param array<array|string|integer>|string|integer|null $v value to be the new context |
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516 | * |
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517 | * @return string The rendered string of the partial |
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518 | * |
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519 | */ |
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520 | 65 | public static function p($cx, $p, $v, $sp = '') { |
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528 | |||
529 | /** |
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530 | * LightnCandy runtime method for {{> partial}} . |
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531 | * |
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532 | * @param array<string,array|string|integer> $cx render time context |
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533 | * @param string $p partial name |
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534 | * @param Closure $code the compiled partial code |
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535 | * |
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536 | * @return string The rendered string of the partial |
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537 | * |
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538 | */ |
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539 | public static function in(&$cx, $p, $code) { |
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542 | |||
543 | /** |
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544 | 22 | * LightnCandy runtime method for custom helpers. |
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545 | 22 | * |
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546 | * @param array<string,array|string|integer> $cx render time context |
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547 | * @param string $ch the name of custom helper to be executed |
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548 | * @param array<array> $vars variables for the helper |
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549 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
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550 | * |
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551 | * @return string The rendered string of the token |
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552 | * |
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553 | * @expect '---' when input array('helpers' => array('a' => function ($i) {return "-$i[0]-";})), 'a', array(array('-'),array()), 'raw' |
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554 | * @expect '-&-' when input array('helpers' => array('a' => function ($i) {return "-$i[0]-";})), 'a', array(array('&'),array()), 'enc' |
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555 | * @expect '-'-' when input array('helpers' => array('a' => function ($i) {return "-$i[0]-";})), 'a', array(array('\''),array()), 'encq' |
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556 | * @expect '-b-' when input array('helpers' => array('a' => function ($i,$j) {return "-{$j['a']}-";})), 'a', array(array(),array('a' => 'b')), 'raw' |
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557 | */ |
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558 | public static function ch($cx, $ch, $vars, $op) { |
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561 | |||
562 | /** |
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563 | * LightnCandy runtime method to handle response of custom helpers. |
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564 | * |
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565 | * @param string|array<string,array|string|integer> $ret return value from custom helper |
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566 | 165 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
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567 | 165 | * |
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568 | 10 | * @return string The rendered string of the token |
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569 | 9 | * |
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570 | * @expect '-&-' when input '-&-', 'raw' |
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571 | 10 | * @expect '-&'-' when input '-&\'-', 'enc' |
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572 | * @expect '-&'-' when input '-&\'-', 'encq' |
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573 | * @expect '-&'-' when input array('-&\'-'), 'enc' |
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574 | * @expect '-&'-' when input array('-&\'-'), 'encq' |
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575 | 165 | * @expect '-&-' when input array('-&-', false), 'enc' |
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576 | 9 | * @expect '-&-' when input array('-&-', false), 'raw' |
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577 | 99 | * @expect '-&-' when input array('-&-', 'raw'), 'enc' |
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578 | 88 | * @expect '-&'-' when input array('-&\'-', 'encq'), 'raw' |
|
579 | */ |
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580 | 99 | public static function chret($ret, $op) { |
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596 | 145 | ||
597 | 145 | /** |
|
598 | * LightnCandy runtime method for Handlebars.js style custom helpers. |
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599 | 145 | * |
|
600 | 1 | * @param array<string,array|string|integer> $cx render time context |
|
601 | * @param string $ch the name of custom helper to be executed |
||
602 | * @param array<array|string|integer>|string|integer|null $vars variables for the helper |
||
603 | 145 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
|
604 | * @param boolean $inverted the logic will be inverted |
||
605 | 145 | * @param Closure|null $cb callback function to render child context |
|
606 | 145 | * @param Closure|null $else callback function to render child context when {{else}} |
|
607 | 145 | * |
|
608 | 145 | * @return string The rendered string of the token |
|
609 | */ |
||
610 | public static function hbch($cx, $ch, $vars, $op, $inverted, $cb = null, $else = null) { |
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708 | |||
709 | /** |
||
710 | * LightnCandy runtime method for block custom helpers. |
||
711 | * |
||
712 | 4 | * @param array<string,array|string|integer> $cx render time context |
|
713 | 4 | * @param string $ch the name of custom helper to be executed |
|
714 | * @param array<array|string|integer>|string|integer|null $vars variables for the helper |
||
715 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
||
716 | 4 | * @param boolean $inverted the logic will be inverted |
|
717 | 2 | * @param Closure $cb callback function to render child context |
|
718 | 2 | * @param Closure|null $else callback function to render child context when {{else}} |
|
719 | 2 | * |
|
720 | * @return string The rendered string of the token |
||
721 | * |
||
722 | 4 | * @expect '4.2.3' when input array('blockhelpers' => array('a' => function ($cx) {return array($cx,2,3);})), 'a', array(0, 0), 4, false, function($cx, $i) {return implode('.', $i);} |
|
723 | 4 | * @expect '2.6.5' when input array('blockhelpers' => array('a' => function ($cx,$in) {return array($cx,$in[0],5);})), 'a', array('6', 0), 2, false, function($cx, $i) {return implode('.', $i);} |
|
724 | 2 | * @expect '' when input array('blockhelpers' => array('a' => function ($cx,$in) {})), 'a', array('6', 0), 2, false, function($cx, $i) {return implode('.', $i);} |
|
725 | 1 | */ |
|
726 | 1 | public static function bch($cx, $ch, $vars, $in, $inverted, $cb, $else = null) { |
|
753 | } |
||
754 | |||
755 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.